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Free Online SRT Time Shift Tool

Shift SRT cue timestamps by signed milliseconds. Reject shifts that move a cue before time zero.

Your input stays on this device. Processing is bounded; regex runs in a worker with a two-second timeout.

Result



How to use SRT Time Shift Tool
Shift SRT cue timestamps by signed milliseconds. Reject shifts that move a cue before time zero.
  1. Set Text.
  2. Set Milliseconds.
  3. Run the tool, review the result and its stated limitations, then copy or download if needed.
Example & practical use
Shift SRT cue timestamps by signed milliseconds. Reject shifts that move a cue before time zero. The example below demonstrates Text; Milliseconds.
Example input:
{
  "text": "1\n00:00:01,000 --> 00:00:02,000\nHi",
  "milliseconds": 1000
}
Expected result (relevant fields):
"1\n00:00:02,000 --> 00:00:03,000\nHi"
Features & result limitations
Shift SRT cue timestamps by signed milliseconds. Reject shifts that move a cue before time zero.
Frequently asked questions
What inputs does SRT Time Shift Tool accept?
Text; Milliseconds
How should I interpret the SRT Time Shift Tool result?
Shift SRT cue timestamps by signed milliseconds. Reject shifts that move a cue before time zero.
Where does SRT Time Shift Tool process my data?
Inputs are processed locally in your browser. Submitted text is not sent to external services. A successful-run event increments an aggregate tool counter without your input.